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ASoC: rt5645: check return value after reading device id
author
Shuming Fan
<shumingf@realtek.com>
Wed, 5 Jul 2023 04:29:14 +0000
(12:29 +0800)
committer
Mark Brown
<broonie@kernel.org>
Wed, 5 Jul 2023 12:00:54 +0000
(13:00 +0100)
If the I2C controller encounters some problems like timed-out, the codec
driver will report the error code for the first read.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link:
https://lore.kernel.org/r/20230705042915.24932-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/codecs/rt5645.c
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diff --git
a/sound/soc/codecs/rt5645.c
b/sound/soc/codecs/rt5645.c
index acc7fb1581b239251a977745ef75d6b8639346cd..a506d940a2eadcd011506eb72cdd075be2492006 100644
(file)
--- a/
sound/soc/codecs/rt5645.c
+++ b/
sound/soc/codecs/rt5645.c
@@
-3950,7
+3950,11
@@
static int rt5645_i2c_probe(struct i2c_client *i2c)
* read and power On.
*/
msleep(TIME_TO_POWER_MS);
- regmap_read(regmap, RT5645_VENDOR_ID2, &val);
+ ret = regmap_read(regmap, RT5645_VENDOR_ID2, &val);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Failed to read: 0x%02X\n, ret = %d", RT5645_VENDOR_ID2, ret);
+ goto err_enable;
+ }
switch (val) {
case RT5645_DEVICE_ID: